//
// Created by WuShiHai on 23/11/2016.
//

#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/socket.h>

int main(void){
    int fd1,fd2,fd3;
    fd1 = socket(PF_INET,SOCK_STREAM,0);
    fd2 = open("test.dat",O_CREAT|O_WRONLY|O_TRUNC);
    fd3 = socket(PF_INET,SOCK_DGRAM, 0 );

    printf("file descriptpr 1: %d\n",fd1);
    printf("file descriptpr 2: %d\n",fd2);
    printf("file descriptpr 3: %d\n",fd3);

    close(fd1);
    close(fd2);
    close(fd3);

    return 0;
}